Description: 用相空间局部投影法对加噪混沌时间序列去噪或进行混沌序列与正弦信号的分离。-phase space with local law to increase the projector noise chaotic time series denoising or chaotic sequence with sinusoidal signal separation. Platform: |
Size: 1024 |
Author: |
Hits:
Description: 利用小波方法对语音信号进行去噪，取得了很好的效果。-using wavelet method of voice signal denoising, and achieved very good results. Platform: |
Size: 1024 |
Author:付荣申 |
Hits:
Description: 这个是实时采集语音信号，以及小波消噪的运行程序，我用过的，还算可以，但是小波消噪的那个程序有点问题，大家如果运行后，发现问题出在什么地方，谢谢告诉我。-This is a real-time voice signal acquisition and wavelet denoising operating procedures, I used that figure, Wavelet denoising but that the process is flawed, and if we run, it is found that the problem is in place, Thank you to tell me. Platform: |
Size: 66560 |
Author:杨洁 |
Hits:
Description: 数字信号处理的应用之一是从含有加性噪声的信号中去除噪声。现有被噪声污染的信号x[k]=s[k]+d[k],式中： 为原始信号d[k]为均匀分布的白噪声。
（1）分别产生50点的序列s[k]和白噪声序列d[k],将二者叠加生成x[k],并在同一张图上绘出x0[k],d[k]和x[k]的序列波形。
（2）均值滤波可以有效去除叠加在低频信号上的噪声。已知3点滑动平均数字滤波器的单位脉冲响应为h[k]=[1,1,1 k=0,1,2],计算y[k]=x[k]*h[k],在同一张图上绘出前50点y[k],s[k]和x[k]的波形，比较序列y[k]和s[k]。
-digital signal processing applications from one containing additive noise signal denoising. Existing noise pollution was a signal x [k] = s [k] d [k], where : of the original signal d [k] uniform distribution of white noise. (1) have 50 points each sequence s [k] and white noise sequence d [k] superposition of the two generation x [k] and the same is likely to draw a map x0 [k] d [k] and x [k] waveform sequence. (2) mean filter can effectively remove superimposed on the low-frequency noise on the signal. 3:00 known moving average digital filter unit for pulse response h [k] = [k = 0,1,2 1,1,1] Calculation y [k] = x [k]* h [k], the same is likely to draw a map before 50 y [k] s [k] and x [k] waveform sequence comparison y [k] s and [k]. Platform: |
Size: 28672 |
Author:魏臻 |
Hits:
Description: 本程序是经典谱估计方法的程序，仿照＜数字信号处理＞胡广书．包含了书中后面三章的所有方法．另外还有ＦＩＲ，ＩＩＲ数字滤波器的去噪方法，ＳＶＤ特征值去噪，信噪比的计算等等．是一经典的程序组．希望和所有人共享-this procedure is classic method of spectral estimation procedures, modeled on the "Digital Signal Processing" Mr Kwong book. The book contains three chapters behind all the way. Another FIR, IIR digital filter de-noising, SVD eigenvalue denoising, the signal-to-noise ratio calculation, and so on. Is a classic procedure group. All sharing hopes and Platform: |
Size: 2530304 |
Author:单昊 |
Hits:
Description: 随机信号处理中的经典去噪算法集合，有很多非常好的算法，值得研究。-Random signal processing Denoising Algorithm classic collection, there are many very good algorithms, is worth studying. Platform: |
Size: 25600 |
Author:牟建超 |
Hits:
Description: 本文是小波分析在信号降噪方面的应用，有很全的源代码和文字说明，对学习的人有很大的帮助，并且有直观的图像和结果分析。与大家共享-This is the application of wavelet analysis in signal denoising applications, has a very wide source code and text that has to learn a great help, and have visual images and results analysis. With the U.S. share Platform: |
Size: 44032 |
Author:阳关 |
Hits:
Description: Gaussian filtering in one, two or three dimensions is among
the most commonly needed tasks in signal and image processing.
Finite impulse response filters in the time domain
with Gaussian masks are easy to implement in either floating
or fixed point arithmetic, because Gaussian kernels are
strictly positive and bounded. But these implementations are
slow for large images or kernels. With the recursive IIRfilters
and FFT-based methods, there are at least two alternative
methods to perform Gaussian filtering in a faster way,
but so far they are only applicable when floating-point hardware
is available. In this paper, a fixed-point implementation
of recursive Gaussian filtering is discussed and applied
to isotropic and anisotropic image filtering by making use of
a non-orthogonal separation scheme of the Gaussian filter. Platform: |
Size: 1024 |
Author:yangdi |
Hits:
Description: 数字信号处理作业——小波变换的一个应用：
对一个图像加噪后再进行小波去噪、复小波去噪操作。-Digital signal processing operations- An application of wavelet transform: for an image noise after wavelet denoising, complex wavelet denoising operation. Platform: |
Size: 171008 |
Author:yoyo |
Hits:
Description: 利用小波提升算法实现了第二代小波变换,将之应用在信号去噪中,实现了数据的边界对称延拓,去噪效果较好.-Wavelet Lifting algorithm using the second generation wavelet transform, to be used in signal de-noising, the realization of the data symmetric boundary extension, denoising better. Platform: |
Size: 3072 |
Author:薛坚 |
Hits:
Description: This document is intended to serve as an introduction to Wavelet processing through a set of Matlab experiments. These experiments will gives an overview of three fundamental tasks in signal and image processing : signal, denoising and compression. These scripts are selfs contents (needed additional Matlab functions can be downloaded while reading the lectures).
Each one of these five lectures should take between 1h and 2h in order to tests the various features of the scripts. One should copy/paste the provided code into a file names e.g. tp1.m, and launch the script directly from Matlab comand line > tp1 . Some of the scripts contains "holes" that you should try to fill on your own.
I also provide the complete correction of these lectures as a set of Matlab scripts, but you should try as much as possible to avoid using them.
-This document is intended to serve as an introduction to Wavelet processing through a set of Matlab experiments. These experiments will gives an overview of three fundamental tasks in signal and image processing: signal, denoising and compression. These scripts are selfs contents (needed additional Matlab functions can be downloaded while reading the lectures). Each one of these five lectures should take between 1h and 2h in order to tests the various features of the scripts. One should copy/paste the provided code into a file names eg tp1.m, and launch the script directly from Matlab comand line> tp1. Some of the scripts contains holes that you should try to fill on your own.I also provide the complete correction of these lectures as a set of Matlab scripts, but you should try as much as possible to avoid using them. Platform: |
Size: 6066176 |
Author:风帆 |
Hits:
Description: 最新的经验模态变换工具箱，有效实现分频，将原始信号分解成不同频率信号，实现信号分离等功能，还给出了去噪算法。-The latest empirical mode transform toolbox, effective realization of sub-frequency decomposition of the original signal into different frequency signals, to achieve signal separation and other functions, but also gives the denoising algorithm. Platform: |
Size: 21504 |
Author:李小 |
Hits:
Description: 语音信号去噪，在MATLAB开发环境下，对含噪声的语音信号进行小波变换，根据阈值去噪的原理去噪，然后逆变换得到增强的语音信号-Speech Signal Denoising in the MATLAB development environment, including noise on the voice signal wavelet transform, in accordance with the principle of threshold denoising Denoising, and then inverse transform enhanced speech signal Platform: |
Size: 4096 |
Author:王鹏 |
Hits:
Description: 本代码是基于Bandelet的硬阈值SAR图像去噪，结果与小波变换进行对比，结果表示其在峰值信噪比，边缘保持系数上均有一定的提高。压缩包中有程序和SAR图像。-This code is based on Bandelet SAR image denoising with a hard threshold .the results were compared with the wavelet transform, and the results indicated that in the peak signal to noise ratio(PSNR)and edge-preserving index(EPI), there is a certain on the increase. There are procedures and SAR images in this compression package. Platform: |
Size: 270336 |
Author:周宇 |
Hits:
Description: 使用matlab的小波分解和重建函数对24位的ADC采样数据进行小波变换和去噪，去噪使用阈值算法，阈值的选取具体使用了6种方法进行对比，对于不同信号其效果是不同的！把去噪后的信号和原始信号放在一个图中，使用不同颜色的曲线进行对比，效果可以很直观的表现。-Using matlab wavelet decomposition and reconstruction of the function for 24-bit ADC sampling data wavelet transform and denoising, denoising using the threshold algorithm, the threshold selecting specific methods used six kinds of contrast, the effect for different signals is different The! After the denoising signal and the original signal on a map using different colors to compare curves, the effect can be very intuitive performance. Platform: |
Size: 69632 |
Author:刘玉才 |
Hits:
Description: 用于信号降噪 处理，使用小波变换算法，可用于音频文件处理-For signal noise reduction, using wavelet transform algorithm can be used for processing audio files Platform: |
Size: 353280 |
Author:Fan |
Hits:
Description: 小波去噪的几篇论文
Automatic identification and Removal of ocular artifacts from EEG using Wavelet transform
小波去噪理论及MATLAB实现研究
小波分析在信号降噪处理中的应用
小波软阈值滤波在信号去噪中的有效性研究-Wavelet denoising of several papers Automatic identification and Removal of ocular artifacts from EEG using Wavelet transform Wavelet Denoising MATLAB implementation of wavelet theory and analysis of noise in the signal processing using wavelet soft threshold filter effectiveness in signal denoising study Platform: |
Size: 5649408 |
Author:STyuco |
Hits:
Search - denoising signal